Fluorescent paint, and preparation method and application thereof

A fluorescent coating and fluorescent particle technology, applied in the field of fluorescent coatings, can solve the problems of deterioration of luminous effect, easy cracking of the coating, poor light resistance, weather resistance and chemical stability, etc. The effect of improving stability

Active Publication Date: 2016-09-21
林歆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing fluorescent paints have complete color spectrum, bright and pure shade, strong tinting strength, but poor light fastness, weather resistance and chemical stability
Especially in outdoor places, after being exposed to the sun and rain, the luminous effect will deteriorate and the coating will crack easily

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 Preparation of coated long-lasting phosphor

[0032] Add 500g of long-lasting fluorescent particles to 2000ml of NaOH solution with pH=12-13, stir for 10min, drain the supernatant, and wash three times in total. Adding mass percentage is 5-10% Ca(NO 3 ) 2 The solution was stirred for 10 min. Then add mass percent as 3-10% NaH 2 PO 4 Stir for 10 min. Ca(NO 3 ) 2 and NaH 2 PO 4 generate Ca 3 (PO 4 ) 2 , Ca 3 (PO 4 ) 2 Cover the outer surface of long-lasting fluorescent particles to form a calcium phosphate film. The solution after the complete reaction is dehydrated and dried at 110-140° C. for 10 hours to obtain the coated phosphor. The mesh of the coated fluorescent powder is 100-500 mesh, and the thickness of the calcium phosphate film layer is 5-20nm.

Embodiment 2

[0033] Example 2 Preparation of Fluorescent Paint

[0034] The mass percentage is 45%-80% epoxy resin, 2%-10% ethylene glycol, 0.5%-5% alkyl phosphate (CP-88), 2%-15% acrylic resin and 0.1 %-5% of silicon dioxide is mixed to make a solvent, and then 5%-50% of coated long-lasting phosphor powder prepared in Example 1 is added, mixed and stirred at room temperature for 0.5 hours to make a fluorescent paint.

Embodiment 3

[0035] Example 3 Preparation of coated long-lasting phosphor

[0036] Add 500g of long-lasting fluorescent particles to 2000ml of NaOH solution with pH=12-13, stir for 10min, drain the supernatant, and wash three times in total. Adding mass percentage is 5-10% CaCl 2 The solution was stirred for 10 min. Then add mass percent as 3-10% KH 2 PO 4 Stir for 10 min. CaCl 2 and KH 2 PO 4 generate Ca 3 (PO4) 2 , Ca 3 (PO 4 ) 2 Cover the outer surface of long-lasting fluorescent particles to form a calcium phosphate film. The solution after the complete reaction is dehydrated and dried at 110-140° C. for 10 hours to obtain the coated phosphor. The mesh of the coated fluorescent powder is 100-500 mesh, and the thickness of the calcium phosphate film layer is 5-20nm.

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Abstract

The invention provides fluorescent paint. The fluorescent paint comprises long-afterglow fluorescent powder, binding agents, curing agents, anti-precipitation agents, wear-resisting agents and anti-ultraviolet gloss oil. The invention further provides a preparation method and application of the fluorescent paint. The fluorescent paint has good water, heat, light and abrasion resistance performance, coatings are not easy to crack and peel off even if the fluorescent paint is used in severe environments for long time, service life is long, and the fluorescent paint is simple in production process, stable in performance, convenient and practical.

Description

technical field [0001] The invention relates to the field of fluorescent materials, in particular to fluorescent paints, their preparation methods and applications. Background technique [0002] With the development of the architectural decoration industry, the paint industry also develops accordingly. There are various functional paints on the market, and fluorescent paint is one of them. Fluorescent coatings have strong light-absorbing-light-storing-light-emitting capabilities. By absorbing ultraviolet light or visible light, light energy can be transformed and stored, and can be converted into light energy in the dark to emit light. Fluorescent paint is endowed with fluorescent function by the fluorescent pigment in its composition. [0003] Existing fluorescent paints have complete chromatograms, bright and pure shades, strong tinting strength, but poor light resistance, weather resistance and chemical stability. Especially in outdoor places, after being exposed to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/22
CPCC09D5/22C09D7/61C09D7/62C09D7/63C09D7/65C09D163/00C08L33/00C08K13/06C08K9/10C08K5/521C08K3/36C08L75/04C08K2003/2244C08K5/42
Inventor 林歆
Owner 林歆
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